/*
ajx:
var XHR = new XMLHttpRequest();
XHR.open('POST', "http://192.168.0.134:8080/dealer/form/public/saveForm");
XHR.setRequestHeader("accept", "application/json, text/plain, "); 
  XHR.setRequestHeader("Content-Type", "application/json"); 
  XHR.send(datas);
  XHR.onreadystatechange = function () {
    if (XHR.readyState === 4) {
      if((XHR.status >= 200 && XHR.status < 300) || XHR.status == 300) {
        //  提交成功
        bgel.id = 'app-wrp-sbum' //背景
        formEl.innerHTML = '',  //清空form
        formEl.appendChild(divEl) // 提示成功
      } else {
      alert("Request was unsuccessful: " + XHR.status);
      } 
    }
  }
}
*/